Plumbing fixture



June 1o, 1930'.

A. M. KHUN vPLUMBING FIXTURE Filed April 3, 1929 AnoRNr-:Ys

Patented June 10, 1930 .ALBERT M. KHUN, OF ELIZABETH, NEW JERSEY rLUMBrNG FIXTURE Application `filed. April 3, 1929. Serial No. 352,270.

This `invention relates to plumbing fixtures. v

It is among the objects of the present invention to provide a pressure trap or similar plumbing fixture including novel and improved valve means therefor.

It is a further object of the present invention to provide in combination with a plumbing fixture, a pivoted buoyant valve member adapted to control the flow of fluid therethrough in a predetermined direction.

`It is a further object of the invention to provide a valve float for plumbing fixtures, in combination with novel supporting means therefor. j

Other important objects of the present invention include the combination and interrelation of parts whereby the whole forms a simple, efficient, and easily assembled and disassembled fixture.

Numerous other objects and features of the present invention will be apparent from a consideration of the following specification taken in conjunction with the accompanying drawings,in which Figurel isa vertical section showing one form of the present invention; Fig. 2 is a sectional view taken on lines 2-2 of Fig. 1; i

Fig. 3 is a detail section of the `valve mounting means, and j Fig. 4 is a view of the present invention shown in conjunction with a different type of plumbing fixture.

Referring more particularly to Fig. 1, the invention is shown in conjunction with a half S or P fixture, whereby the same forms a back pressure trap. The fixture with which the r present invention is associated isof the half S type including'thebody 10 and a suitable hand-hole with al closure plug 11 therefor.

The fixture shown is arranged to be soldered to its associated fixtures, an enlarged shoulder 12 being provided therefor. It will be understoodthatvarious changes and modiflcations in the fixture itself may be resorted to without departing from the present invention, and that the fixture may be arranged for threaded engagement with associated xtures, if desired. Forpreventing the passage of fluid upward through the `vertical portion of the `fixture, the valve and valve seat assembly'forming the basis of the present invention is provided.

Between the collar 12 and the body 10, an inwardly extending shoulder 13 is provided, within which is seated a suitable valve seat which is here disclosed as including a suitable resilient band 14: formed of rubber or other suitable material and centrally recessed to receive a metallic spring element 15, which by normal expansion is adapted to secure the seat `withinI a groove 16 of the shoulder 13. The valve seat here illustrated which is preferably used in conjunction with the present invention, forms no part of the invention and it will be understood that other types of valve seats may be used, or, if desired, the valve may seat against the shoulder 13 without the use of an auxiliary valve seat.`

Y Thevalve of the present invention includes a circular flat buoyant body 17 which is adapted forpivotal movements to rest against the valve seat as shown in dotted lines in Fig. 1. The valve 17is preferably formed of metal of a type designedtoresist corrosionby water or the like, and is preferably `filled with heliumor other extremely li -ht gas. It will be understood that the va ve may be formed of any desired material and may contain air or be exhausted of any gas, whereby suitable buoyancy is provided therefor. When it isf desired to use the valve without the supplementary valve seat, the valve may be formed of rubber or covered with rubber or gother suitablev resilient material,

whereby eective seating of the valve against its associated shoulder is obtained.

For pivotally mounting the valve Within the fixture transversely extending shaft 18 is provided, the extremities of which are pivotally received within apertures 19 of a threadedly adjustable member 20, which is threadedly' secured through the sides of the fixture, the extremities of the shaft 18 being loosely received within the apertures 19 to permit free pivotal movement of the valve 117. Associated with the shaft 18. Va pair of spaced lugs 21 are provided, rigidly associ- 4ated with the shaftlS and 'from which-extend externally threaded arms 22, the extremities of which are adapted to be received through suitable casings 23 carried by the valve 17 and Y within which securing balls 24 are rovided.

Referring more particularly to ig. 3, it will be seen that the casings 23 may be secured to the valve 17 by solderingor in other suitable manner. 'Apertures 25 are provided in the sides of the casings 23, whereby the internally threadedballs 24 may be positioned within the casings and threadedly engage the extremities of the arms 22. VEncircling the arms 22 with one 'end abutting the casing and the opposite end abuttingthe lug 21, expansion springs 26 are provided. The arrangement is such that a ball-and-socket oint is provided between the pivoting shaft 18 and the valve 17, the ball-and-socket connection being held under the tension of the spring tion 34, arms 35, lugs 36 and spring 37.

,26, wherebyvrestricted relativeY movement of the arms 22 and the valve 17 may behad, thus providing for the ellicient sealing by the valve17. Y

In the operation of this form ofthe present invention, it will be seen that'water or similar fluid may readily pass'downwardly through the vertical portion of the fitting and through the trap, the passage of the Water retaining the valve17 against flotationV and in its* normal position, as shown inV Fig.v 1, which position will be retained by gravity when-no fluid is passing through the trap. Should, however, the fluid within the trap attempt to pass upwardly through the vertical portion'of the fitting, the float 17 will be buoyedv to take the dotted-line position shown in Fig. 1, in which position itwill contact with its Yseat and effectively seal the fitting against backward flow of the fluid. Y Y

In the preferred form of the invention, a suitable hand-hole and cover 27 therefor is provided adjacent the float 17, whereby the float may be readily removed and replaced and adjusted. l Y i Referring more particularl to Fig. 4, the invention has been shown app ied as a ferrule type back pressure valve. This 'formof the invention is applicable as aI suitable valve preventing back pressure in various types ofV drain fittings, such as cellar drains or the like. In this formrof the invention an apertured cover 30 is provided with an inwardly Vextending flange 31 which defines thesizek of the inlet aperture 32 of the fitting. -Below the inwardly extending flange 31, a valve 33 is pivoted through a ball-and-socket connecshaft38uponfwhich the lugs are Vmounted ,may be supported forpivotal movement from Vthe pipe 39by the apertured plugs as shown at 20 in the previously described form of the invention, orthe shaft maybe supported from depending ears associated with the `flange 31.

In this formof thepresent invention, the

The

normal position of the float 33, is as shown by the dotted lines, the full lin'es indicating the closed position of the float which is secured by the buoyancy of fluid which is seekin to pass upwardly through the pipe 39. he aperture 32 of the present device is not shown as being rovided with the valve seat as shown in 1 ig. 1. It will, however, bc understood that if desired any type of valve seat may be provided in th1s assembly. Without the valve seat, the valve 33 is preferably formed of resilient material, such as rubber, or is encased in such material so that effective sealing is provided between the valve and the valve aperture.

In considering the two forms of thepresent invention here illustrated, it will be understood that numerous other fixtures of similar type may be provided with the present invention. It is thus withinthe scope ofthepresent inventiontoprovide vertical straightaway fittings, oset fittings, 90 ells, and horizon- `tal traps`,'tog'ether with manholesn and manhole covers, with the float and float mounting herein disclosed.

It will further be understood that the invention is not confined to the specific 'structural details presented andthat numerous changes and modifications and the full use of equivalents may bev resorted to without departingV from the spirit or scope of the present invention and as outlined in the appended claims.

That is claimed is: y

1. In a plumbing fixture, a buoyant valve, and means pivotally associating the same with said fixture, said means including a pivi otally mounted shaft carried by said fixture.

y y 2. In a plumbing fixture, a buoyantv valve,

and arms extending therefrom associated with saidvalve. Y Y Y 3. In a plumbing fixture, a buoyant valve,

means pivotally associatingthe'same with said fixture, said means includin a pivotally mounted-shaft carried by said xture, arms extending therefrom associated with said valve, and ball-and-socketmeans connecting said arms and-valve.

. 4.V In a plumbing fixture, a buoyant valve, means pivotally Vassociating the same with said fixtures,said means including a pivot- Aally mounted shaftcarriedbysaid fixture,

arms .extending Ytherefrom associated with, said valve, and ball-and-socket means connect- `ing said arms and said valve,.saidlastmen tioned means including an `apertured housing carried by said valve and a ball within said housing associated with said arms'.

5. In ak plumbingV fixture, a buoyant valve, meanspivotallyV associating the same with said fixture, said means including a pivotally mountedshaft carried by said fixture,

arms extending therefrom associated With said valve, ball-and-socket means connecting i said arms and valve, said last-mentioned means including an apertured housing carried by said valve and a ball Within said housing associated with said arms, and resilient means surrounding said arms and abutting said housing to retain said ball in Contact therewith.

6. In a plumbing fixture, a buoyant valve, and means pivotally associating the valve with said fixture, said means including a resilient connection of said valve therewith so that said valve may move With respect to said means to automatically adjust said valve to its seat. j

7. In a plumbing lixture, a buoyant valve, means for pivotally associating the valve with said fixture, said means including arms pivotally secured to said iixture, and a lost motion assembly joining said valve to said arms, said assembly including balls carried by said arms and housings loosely receiving said balls, whereby said valve may move With respect to said arms.

8. In a plumbing fixture, a buoyant valve, means for pivotally associating the valve With said fixture, said means including arms pivotally secured to said fixture, a lost motion assembly joining said valve to said arms, said assembly including balls carried by said arms and housings loosely receivingsaid balls, whereby said valve may move With respect to said arms, and resilient means carried by said arms and abutting said housings to normally urge said valve to move in lixed relation With said arms.

ALBERT M. KI-IUN. 

